WASHINGTON – A 68-year-old Pennsylvania man was busted in an FBI sting operation for trying to sell a bomb to a terrorist group connected to al Qaeda, federal prosecutors said yesterday.

Ronald Allen Grecula, of Bangor, Pa., was accused in a criminal complaint, unveiled by the U.S. attorney’s office in Houston, Texas, of offering to build and sell a powerful explosive device to the terrorist group to be used against American citizens.

The FBI recorded several phone conversations between Grecula and an informant in which Grecula allegedly talked about his bomb-making skills and discussed staging a demonstration.

Grecula is charged with attempting to provide material support to a terrorist organization. He could face up to 15 years in prison.